#include "AliLog.h"
#include "AliStrLine.h"
#include "AliExternalTrackParam.h"
+#include "AliNeutralTrackParam.h"
+#include "AliVEvent.h"
+#include "AliVTrack.h"
#include "AliESDEvent.h"
#include "AliESDtrack.h"
#include "AliVertexerTracks.h"
fFiducialR(3.),
fFiducialZ(30.),
fnSigmaForUi00(1.5),
-fAlgo(1)
+fAlgo(1),
+fAlgoIter0(4)
{
//
// Default constructor
fFiducialR(3.),
fFiducialZ(30.),
fnSigmaForUi00(1.5),
-fAlgo(1)
+fAlgo(1),
+fAlgoIter0(4)
{
//
// Standard constructor
//
SetVtxStart();
SetVtxStartSigma();
- SetTPCMode();
}
//-----------------------------------------------------------------------------
AliVertexerTracks::~AliVertexerTracks()
// The objects pointed by the following pointer are not owned
// by this class and are not deleted
fCurrentVertex = 0;
- if(fTrksToSkip) { delete [] fTrksToSkip; fTrksToSkip=NULL; }
- if(fIdSel) { delete [] fIdSel; fIdSel=NULL; }
+ if(fTrksToSkip) { delete fTrksToSkip; fTrksToSkip=NULL; }
+ if(fIdSel) { delete fIdSel; fIdSel=NULL; }
}
//----------------------------------------------------------------------------
-AliESDVertex* AliVertexerTracks::FindPrimaryVertex(const AliESDEvent *esdEvent)
+AliESDVertex* AliVertexerTracks::FindPrimaryVertex(AliVEvent *vEvent)
{
//
-// Primary vertex for current ESD event
+// Primary vertex for current ESD or AOD event
// (Two iterations:
// 1st with 5*fNSigma*sigma cut w.r.t. to initial vertex
// + cut on sqrt(d0d0+z0z0) if fConstraint=kFALSE
//
fCurrentVertex = 0;
+ TString evtype = vEvent->IsA()->GetName();
+ Bool_t inputAOD = ((evtype=="AliAODEvent") ? kTRUE : kFALSE);
+
+ if(inputAOD && fMode==1) {
+ printf("Error : AliVertexerTracks: no TPC-only vertex from AOD\n");
+ TooFewTracks();
+ return fCurrentVertex;
+ }
+
// accept 1-track case only if constraint is available
if(!fConstraint && fMinTracks==1) fMinTracks=2;
- // read tracks from ESD
- Int_t nTrks = (Int_t)esdEvent->GetNumberOfTracks();
+ // read tracks from AlivEvent
+ Int_t nTrks = (Int_t)vEvent->GetNumberOfTracks();
if(nTrks<fMinTracks) {
TooFewTracks();
return fCurrentVertex;
Int_t nTrksOrig=0;
AliExternalTrackParam *t=0;
- // loop on ESD tracks
+ // loop on tracks
for(Int_t i=0; i<nTrks; i++) {
- AliESDtrack *esdt = esdEvent->GetTrack(i);
+ AliVTrack *track = (AliVTrack*)vEvent->GetTrack(i);
// check tracks to skip
Bool_t skipThis = kFALSE;
for(Int_t j=0; j<fNTrksToSkip; j++) {
- if(esdt->GetID()==fTrksToSkip[j]) {
+ if(track->GetID()==fTrksToSkip[j]) {
AliDebug(1,Form("skipping track: %d",i));
skipThis = kTRUE;
}
}
if(skipThis) continue;
- // check number of clusters in ITS or TPC
- if(esdt->GetNcls(fMode) < fMinClusters) continue;
-
- if(fMode==0) { // ITS mode
- if(fITSrefit && !(esdt->GetStatus()&AliESDtrack::kITSrefit)) continue;
- Double_t x,p[5],cov[15];
- esdt->GetExternalParameters(x,p);
- esdt->GetExternalCovariance(cov);
- t = new AliExternalTrackParam(x,esdt->GetAlpha(),p,cov);
- } else if(fMode==1) { // TPC mode
- t = (AliExternalTrackParam*)esdt->GetTPCInnerParam();
- if(!t) continue;
- Double_t radius = 2.8; //something less than the beam pipe radius
- if(!PropagateTrackTo(t,radius)) continue;
+ // kITSrefit
+ if(fMode==0 && fITSrefit && !(track->GetStatus()&AliESDtrack::kITSrefit)) continue;
+
+ if(!inputAOD) { // ESD
+ AliESDtrack* esdt = (AliESDtrack*)track;
+ if(esdt->GetNcls(fMode) < fMinClusters) continue;
+ if(fMode==0) { // ITS mode
+ Double_t x,p[5],cov[15];
+ esdt->GetExternalParameters(x,p);
+ esdt->GetExternalCovariance(cov);
+ t = new AliExternalTrackParam(x,esdt->GetAlpha(),p,cov);
+ } else if(fMode==1) { // TPC mode
+ t = (AliExternalTrackParam*)esdt->GetTPCInnerParam();
+ if(!t) continue;
+ Double_t radius = 2.8; //something less than the beam pipe radius
+ if(!PropagateTrackTo(t,radius)) continue;
+ }
+ } else { // AOD (only ITS mode)
+ Int_t ncls0=0;
+ for(Int_t l=0;l<6;l++) if(TESTBIT(track->GetITSClusterMap(),l)) ncls0++;
+ if(ncls0 < fMinClusters) continue;
+ t = new AliExternalTrackParam(track);
}
trkArrayOrig.AddLast(t);
- idOrig[nTrksOrig]=(UShort_t)esdt->GetID();
+ idOrig[nTrksOrig]=(UShort_t)track->GetID();
nTrksOrig++;
- } // end loop on ESD tracks
+ } // end loop on tracks
// call method that will reconstruct the vertex
FindPrimaryVertex(&trkArrayOrig,idOrig);
if(fMode==0) trkArrayOrig.Delete();
- delete [] idOrig; idOrig=NULL;
+ delete idOrig; idOrig=NULL;
if(f) {
f->Close(); delete f; f = NULL;
olddir->cd();
}
+ // set vertex ID for tracks used in the fit
+ // (only for ESD)
+ if(!inputAOD) {
+ Int_t nIndices = fCurrentVertex->GetNIndices();
+ UShort_t *indices = fCurrentVertex->GetIndices();
+ for(Int_t ind=0; ind<nIndices; ind++) {
+ AliESDtrack *esdt = (AliESDtrack*)vEvent->GetTrack(indices[ind]);
+ esdt->SetVertexID(-1);
+ }
+ }
+
return fCurrentVertex;
}
//----------------------------------------------------------------------------
// fill fTrkArraySel, for VertexFinder()
fIdSel = new UShort_t[nTrksOrig];
PrepareTracks(*trkArrayOrig,idOrig,0);
- if(fIdSel) { delete [] fIdSel; fIdSel=NULL; }
+ if(fIdSel) { delete fIdSel; fIdSel=NULL; }
Double_t cutsave = fDCAcut;
fDCAcut = fDCAcutIter0;
- VertexFinder(1); // using weights, cutting dca < fDCAcutIter0
+ // vertex finder
+ switch (fAlgoIter0) {
+ case 1: StrLinVertexFinderMinDist(1); break;
+ case 2: StrLinVertexFinderMinDist(0); break;
+ case 3: HelixVertexFinder(); break;
+ case 4: VertexFinder(1); break;
+ case 5: VertexFinder(0); break;
+ default: printf("Wrong algorithm\n"); break;
+ }
fDCAcut = cutsave;
if(fVert.GetNContributors()>0) {
fVert.GetXYZ(fNominalPos);
// between initVertex and fCurrentVertex)
for(Int_t iter=1; iter<=2; iter++) {
if(fOnlyFitter && iter==1) continue;
- if(fIdSel) { delete [] fIdSel; fIdSel=NULL; }
+ if(fIdSel) { delete fIdSel; fIdSel=NULL; }
fIdSel = new UShort_t[nTrksOrig];
Int_t nTrksSel = PrepareTracks(*trkArrayOrig,idOrig,iter);
AliDebug(1,Form("N tracks selected in iteration %d: %d",iter,nTrksSel));
indices[jj] = fIdSel[jj];
fCurrentVertex->SetIndices(nIndices,indices);
}
- delete [] indices; indices=NULL;
+ if (indices) {delete indices; indices=NULL;}
//
// set vertex title
AliDebug(1,Form("xyz: %f %f %f; nc %d",fCurrentVertex->GetXv(),fCurrentVertex->GetYv(),fCurrentVertex->GetZv(),fCurrentVertex->GetNContributors()));
// clean up
- delete [] fIdSel; fIdSel=NULL;
+ delete fIdSel; fIdSel=NULL;
fTrkArraySel.Delete();
- if(fTrksToSkip) { delete [] fTrksToSkip; fTrksToSkip=NULL; }
+ if(fTrksToSkip) { delete fTrksToSkip; fTrksToSkip=NULL; }
//
return fCurrentVertex;
// loop on tracks
for(Int_t i=0; i<nTrksOrig; i++) {
- track = new AliExternalTrackParam(*(AliExternalTrackParam*)trkArrayOrig.At(i));
+ AliExternalTrackParam *trackOrig=(AliExternalTrackParam*)trkArrayOrig.At(i);
+ if(trackOrig->Charge()!=0) { // normal tracks
+ track = new AliExternalTrackParam(*(AliExternalTrackParam*)trkArrayOrig.At(i));
+ } else { // neutral tracks (from a V0)
+ track = new AliNeutralTrackParam(*(AliNeutralTrackParam*)trkArrayOrig.At(i));
+ }
+
// tgl cut
if(TMath::Abs(track->GetTgl())>fMaxTgl) {
AliDebug(1,Form(" rejecting track with tgl = %f",track->GetTgl()));
//
Double_t ca=TMath::Cos(alphan-track->GetAlpha()),
sa=TMath::Sin(alphan-track->GetAlpha());
- Double_t sf=track->GetSnp(), cf=TMath::Sqrt(1.- sf*sf);
+ Double_t sf=track->GetSnp(), cf=TMath::Sqrt((1.-sf)*(1.+sf));
Double_t sinNew = sf*ca - cf*sa;
if(TMath::Abs(sinNew) >= maxSnp) return kFALSE;
if(!track->Rotate(alphan)) return kFALSE;
AliESDVertex* AliVertexerTracks::RemoveTracksFromVertex(AliESDVertex *inVtx,
TObjArray *trkArray,
UShort_t *id,
- Float_t *diamondxy)
+ Float_t *diamondxy) const
{
//
// Removes tracks in trksTree from fit of inVtx
sumWi -= wWi;
sumWiri -= wWiri;
- // track chi2
+ // track contribution to chi2
TMatrixD deltar = rv; deltar -= ri;
TMatrixD wWideltar(wWi,TMatrixD::kMult,deltar);
Double_t chi2i = deltar(0,0)*wWideltar(0,0)+
cov[5] = vVnew(2,2);
// store data in the vertex object
- AliESDVertex *outVtx = new AliESDVertex(position,cov,chi2,nUsedTrks);
+ AliESDVertex *outVtx = new AliESDVertex(position,cov,chi2,nUsedTrks+1); // the +1 is for the constraint
outVtx->SetTitle(inVtx->GetTitle());
UShort_t *inindices = inVtx->GetIndices();
Int_t nIndices = nUsedTrks;
}
}
outVtx->SetIndices(nIndices,outindices);
- delete [] outindices;
+ if (outindices) delete outindices;
/*
printf("Vertex before removing tracks:");
return outVtx;
}
//---------------------------------------------------------------------------
+AliESDVertex* AliVertexerTracks::RemoveConstraintFromVertex(AliESDVertex *inVtx,
+ Float_t *diamondxyz,
+ Float_t *diamondcov) const
+{
+//
+// Removes diamond constraint from fit of inVtx
+//
+
+ if(!strstr(inVtx->GetTitle(),"VertexerTracksWithConstraint")) {
+ printf("ERROR: primary vertex has no constraint: cannot remove it\n");
+ return 0x0;
+ }
+ if(inVtx->GetNContributors()<3) {
+ printf("ERROR: primary vertex has less than 2 tracks: cannot remove contraint\n");
+ return 0x0;
+ }
+
+ // diamond constraint
+ TMatrixD vVb(3,3);
+ vVb(0,0) = diamondcov[0];
+ vVb(0,1) = diamondcov[1];
+ vVb(0,2) = 0.;
+ vVb(1,0) = diamondcov[1];
+ vVb(1,1) = diamondcov[2];
+ vVb(1,2) = 0.;
+ vVb(2,0) = 0.;
+ vVb(2,1) = 0.;
+ vVb(2,2) = diamondcov[5];
+ TMatrixD vVbInv(TMatrixD::kInverted,vVb);
+ TMatrixD rb(3,1);
+ rb(0,0) = diamondxyz[0];
+ rb(1,0) = diamondxyz[1];
+ rb(2,0) = diamondxyz[2];
+ TMatrixD vVbInvrb(vVbInv,TMatrixD::kMult,rb);
+
+ // input vertex
+ TMatrixD rv(3,1);
+ rv(0,0) = inVtx->GetXv();
+ rv(1,0) = inVtx->GetYv();
+ rv(2,0) = inVtx->GetZv();
+ TMatrixD vV(3,3);
+ Double_t cov[6];
+ inVtx->GetCovMatrix(cov);
+ vV(0,0) = cov[0];
+ vV(0,1) = cov[1]; vV(1,0) = cov[1];
+ vV(1,1) = cov[2];
+ vV(0,2) = cov[3]; vV(2,0) = cov[3];
+ vV(1,2) = cov[4]; vV(2,1) = cov[4];
+ vV(2,2) = cov[5];
+ TMatrixD vVInv(TMatrixD::kInverted,vV);
+ TMatrixD vVInvrv(vVInv,TMatrixD::kMult,rv);
+
+
+ TMatrixD sumWi = vVInv - vVbInv;
+
+
+ TMatrixD sumWiri = vVInvrv - vVbInvrb;
+
+ TMatrixD rvnew(3,1);
+ TMatrixD vVnew(3,3);
+
+ // new inverted of weights matrix
+ TMatrixD invsumWi(TMatrixD::kInverted,sumWi);
+ vVnew = invsumWi;
+ // new position of primary vertex
+ rvnew.Mult(vVnew,sumWiri);
+
+ Double_t position[3];
+ position[0] = rvnew(0,0);
+ position[1] = rvnew(1,0);
+ position[2] = rvnew(2,0);
+ cov[0] = vVnew(0,0);
+ cov[1] = vVnew(0,1);
+ cov[2] = vVnew(1,1);
+ cov[3] = vVnew(0,2);
+ cov[4] = vVnew(1,2);
+ cov[5] = vVnew(2,2);
+
+
+ Double_t chi2 = inVtx->GetChi2();
+
+ // diamond constribution to chi2
+ TMatrixD deltar = rv; deltar -= rb;
+ TMatrixD vVbInvdeltar(vVbInv,TMatrixD::kMult,deltar);
+ Double_t chi2b = deltar(0,0)*vVbInvdeltar(0,0)+
+ deltar(1,0)*vVbInvdeltar(1,0)+
+ deltar(2,0)*vVbInvdeltar(2,0);
+ // remove from total chi2
+ chi2 -= chi2b;
+
+ // store data in the vertex object
+ AliESDVertex *outVtx = new AliESDVertex(position,cov,chi2,inVtx->GetNContributors()-1);
+ outVtx->SetTitle("VertexerTracksNoConstraint");
+ UShort_t *inindices = inVtx->GetIndices();
+ Int_t nIndices = inVtx->GetNIndices();
+ outVtx->SetIndices(nIndices,inindices);
+
+ return outVtx;
+}
+//---------------------------------------------------------------------------
void AliVertexerTracks::SetCuts(Double_t *cuts)
{
//
SetMinDetFitter(cuts[6]);
SetMaxTgl(cuts[7]);
SetFiducialRZ(cuts[8],cuts[9]);
+ fAlgo=(Int_t)(cuts[10]);
+ fAlgoIter0=(Int_t)(cuts[11]);
return;
}
Double_t mindetfitter,
Double_t maxtgl,
Double_t fidR,
- Double_t fidZ)
+ Double_t fidZ,
+ Int_t finderAlgo,
+ Int_t finderAlgoIter0)
{
//
// Cut values for ITS mode
SetMinDetFitter(mindetfitter);
SetMaxTgl(maxtgl);
SetFiducialRZ(fidR,fidZ);
+ fAlgo=finderAlgo;
+ fAlgoIter0=finderAlgoIter0;
return;
}
Double_t mindetfitter,
Double_t maxtgl,
Double_t fidR,
- Double_t fidZ)
+ Double_t fidZ,
+ Int_t finderAlgo,
+ Int_t finderAlgoIter0)
{
//
// Cut values for TPC mode
SetMinDetFitter(mindetfitter);
SetMaxTgl(maxtgl);
SetFiducialRZ(fidR,fidZ);
+ fAlgo=finderAlgo;
+ fAlgoIter0=finderAlgoIter0;
return;
}
{
AliExternalTrackParam *track1;
const Int_t knacc = (Int_t)fTrkArraySel.GetEntriesFast();
- static TClonesArray linarray("AliStrLine",knacc);
+ AliStrLine **linarray = new AliStrLine* [knacc];
for(Int_t i=0; i<knacc; i++){
track1 = (AliExternalTrackParam*)fTrkArraySel.At(i);
Double_t alpha=track1->GetAlpha();
sigmasq[2]=track1->GetSigmaZ2();
TMatrixD ri(3,1);
TMatrixD wWi(3,3);
- if(!TrackToPoint(track1,ri,wWi)) continue;
+ if(!TrackToPoint(track1,ri,wWi)) {optUseWeights=kFALSE;printf("WARNING\n");}
Double_t wmat[9];
Int_t iel=0;
for(Int_t ia=0;ia<3;ia++){
iel++;
}
}
- new(linarray[i]) AliStrLine(pos,sigmasq,wmat,dir);
+ linarray[i] = new AliStrLine(pos,sigmasq,wmat,dir);
}
- fVert=TrackletVertexFinder(&linarray,optUseWeights);
- linarray.Clear("C");
+ fVert=TrackletVertexFinder(linarray,knacc,optUseWeights);
+ for(Int_t i=0; i<knacc; i++) delete linarray[i];
+ delete [] linarray;
}
//---------------------------------------------------------------------------
AliESDVertex AliVertexerTracks::TrackletVertexFinder(TClonesArray *lines, Int_t optUseWeights)
{
- // Calculate the point at minimum distance to prepared tracks
-
+ // Calculate the point at minimum distance to prepared tracks (TClonesArray)
const Int_t knacc = (Int_t)lines->GetEntriesFast();
+ AliStrLine** lines2 = new AliStrLine* [knacc];
+ for(Int_t i=0; i<knacc; i++){
+ lines2[i]= (AliStrLine*)lines->At(i);
+ }
+ AliESDVertex vert = TrackletVertexFinder(lines2,knacc,optUseWeights);
+ delete [] lines2;
+ return vert;
+}
+
+//---------------------------------------------------------------------------
+AliESDVertex AliVertexerTracks::TrackletVertexFinder(AliStrLine **lines, const Int_t knacc, Int_t optUseWeights)
+{
+ // Calculate the point at minimum distance to prepared tracks (array of AliStrLine)
+
Double_t initPos[3]={0.,0.,0.};
Double_t (*vectP0)[3]=new Double_t [knacc][3];
}
for(Int_t i=0; i<knacc; i++){
- AliStrLine* line1 = (AliStrLine*)lines->At(i);
+ AliStrLine *line1 = lines[i];
Double_t p0[3],cd[3],sigmasq[3];
Double_t wmat[9];
+ if(!line1) printf("ERROR %d %d\n",i,knacc);
line1->GetP0(p0);
line1->GetCd(cd);
line1->GetSigma2P0(sigmasq);
delete vectP1;
return theVert;
}
+
//---------------------------------------------------------------------------
Bool_t AliVertexerTracks::TrackToPoint(AliExternalTrackParam *t,
TMatrixD &ri,TMatrixD &wWi,
}
if(!fTrkArraySel.IsEmpty()) fTrkArraySel.Delete();
- if(fIdSel) {delete [] fIdSel; fIdSel=NULL;}
- if(fTrksToSkip) {delete [] fTrksToSkip; fTrksToSkip=NULL;}
+ if(fIdSel) {delete fIdSel; fIdSel=NULL;}
+ if(fTrksToSkip) {delete fTrksToSkip; fTrksToSkip=NULL;}
return;
}
AliESDVertex* AliVertexerTracks::VertexForSelectedTracks(TObjArray *trkArray,
UShort_t *id,
Bool_t optUseFitter,
- Bool_t optPropagate)
+ Bool_t optPropagate,
+ Bool_t optUseDiamondConstraint)
{
//
// Return vertex from tracks (AliExternalTrackParam) in array
//
fCurrentVertex = 0;
- SetConstraintOff();
+ // set optUseDiamondConstraint=TRUE only if you are reconstructing the
+ // primary vertex!
+ if(optUseDiamondConstraint) {
+ SetConstraintOn();
+ } else {
+ SetConstraintOff();
+ }
// get tracks and propagate them to initial vertex position
fIdSel = new UShort_t[(Int_t)trkArray->GetEntriesFast()];
Int_t nTrksSel = PrepareTracks(*trkArray,id,0);
- if(nTrksSel < TMath::Max(2,fMinTracks)) {
+ if((!optUseDiamondConstraint && nTrksSel<TMath::Max(2,fMinTracks)) ||
+ (optUseDiamondConstraint && nTrksSel<1)) {
TooFewTracks();
return fCurrentVertex;
}
// vertex finder
- switch (fAlgo) {
- case 1: StrLinVertexFinderMinDist(1); break;
- case 2: StrLinVertexFinderMinDist(0); break;
- case 3: HelixVertexFinder(); break;
- case 4: VertexFinder(1); break;
- case 5: VertexFinder(0); break;
- default: printf("Wrong algorithm\n"); break;
+ if(nTrksSel==1) {
+ AliDebug(1,"Just one track");
+ OneTrackVertFinder();
+ } else {
+ switch (fAlgo) {
+ case 1: StrLinVertexFinderMinDist(1); break;
+ case 2: StrLinVertexFinderMinDist(0); break;
+ case 3: HelixVertexFinder(); break;
+ case 4: VertexFinder(1); break;
+ case 5: VertexFinder(0); break;
+ default: printf("Wrong algorithm\n"); break;
+ }
}
AliDebug(1," Vertex finding completed\n");
Double_t d0z0[2],covd0z0[3];
AliExternalTrackParam *t = 0;
if(fCurrentVertex->GetNContributors()>0) {
- indices = new UShort_t[fCurrentVertex->GetNContributors()];
+ indices = new UShort_t[fTrkArraySel.GetEntriesFast()];
for(Int_t jj=0; jj<(Int_t)fTrkArraySel.GetEntriesFast(); jj++) {
indices[jj] = fIdSel[jj];
t = (AliExternalTrackParam*)fTrkArraySel.At(jj);
}
// clean up
- delete [] indices; indices=NULL;
- delete [] fIdSel; fIdSel=NULL;
+ if (indices) {delete indices; indices=NULL;}
+ delete fIdSel; fIdSel=NULL;
fTrkArraySel.Delete();
return fCurrentVertex;
}
//----------------------------------------------------------------------------
AliESDVertex* AliVertexerTracks::VertexForSelectedESDTracks(TObjArray *trkArray,
- Bool_t optUseFitter,
- Bool_t optPropagate)
+ Bool_t optUseFitter,
+ Bool_t optPropagate,
+ Bool_t optUseDiamondConstraint)
+
{
//
// Return vertex from array of ESD tracks
id[i] = (UShort_t)esdt->GetID();
}
- VertexForSelectedTracks(trkArray,id,optUseFitter,optPropagate);
+ VertexForSelectedTracks(trkArray,id,optUseFitter,optPropagate,optUseDiamondConstraint);
- delete [] id; id=NULL;
+ delete id; id=NULL;
return fCurrentVertex;
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff